{"id":"CVE-2025-68934","state":"PUBLISHED","title":"Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint","description":"Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, authenticated users can submit crafted payloads to /drafts.json that cause O(n^2) processing in Base62.decode, tying up workers for 35-60 seconds per request. This affects all users as the shared worker pool becomes exhausted. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. Lowering the max_draft_length site setting reduces attack surface but does not fully mitigate the issue, as payloads under the limit can still trigger the slow code path.","publishedAt":"2026-01-28T19:19:59.627Z","updatedAt":"2026-01-28T19:46:16.472Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["discourse discourse"],"affected":[{"vendor":"discourse","product":"discourse","versions":[{"version":"< 3.5.4","status":"affected"},{"version":">= 2025.11.0-latest, < 2025.11.2","status":"affected"},{"version":">= 2025.12.0-latest, 2025.12.1","status":"affected"},{"version":">= 2026.1.0-latest, < 2026.1.0","status":"affected"}]}],"references":["https://github.com/discourse/discourse/security/advisories/GHSA-vwjh-vrx9-9849"],"weaknesses":["CWE-770"],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68934.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68934","state":"PUBLISHED","datePublished":"2026-01-28T19:19:59.627Z","dateUpdated":"2026-01-28T19:46:16.472Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-12-24T23:59:23.392Z"},"containers":{"cna":{"title":"Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint","descriptions":[{"lang":"en","value":"Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, authenticated users can submit crafted payloads to /drafts.json that cause O(n^2) processing in Base62.decode, tying up workers for 35-60 seconds per request. This affects all users as the shared worker pool becomes exhausted. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. Lowering the max_draft_length site setting reduces attack surface but does not fully mitigate the issue, as payloads under the limit can still trigger the slow code path."}],"affected":[{"vendor":"discourse","product":"discourse","versions":[{"version":"< 3.5.4","status":"affected"},{"version":">= 2025.11.0-latest, < 2025.11.2","status":"affected"},{"version":">= 2025.12.0-latest, 2025.12.1","status":"affected"},{"version":">= 2026.1.0-latest, < 2026.1.0","status":"affected"}]}],"references":[{"url":"https://github.com/discourse/discourse/security/advisories/GHSA-vwjh-vrx9-9849","name":"https://github.com/discourse/discourse/security/advisories/GHSA-vwjh-vrx9-9849","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","lang":"en","description":"CWE-770: Allocation of Resources Without Limits or Throttling","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-01-28T19:19:59.627Z"},"source":{"advisory":"GHSA-vwjh-vrx9-9849","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-28T19:46:05.140072Z","id":"CVE-2025-68934","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-28T19:46:16.472Z"}}]}}}